CA2056072A1 - Device for transmitting synchronous data in an asynchronous network, particularly an atm network - Google Patents

Device for transmitting synchronous data in an asynchronous network, particularly an atm network

Info

Publication number
CA2056072A1
CA2056072A1 CA002056072A CA2056072A CA2056072A1 CA 2056072 A1 CA2056072 A1 CA 2056072A1 CA 002056072 A CA002056072 A CA 002056072A CA 2056072 A CA2056072 A CA 2056072A CA 2056072 A1 CA2056072 A1 CA 2056072A1
Authority
CA
Canada
Prior art keywords
information
network
compensating
asynchronous
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002056072A
Other languages
French (fr)
Other versions
CA2056072C (en
Inventor
Gerard Sorton
Thierry Grenot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2056072A1 publication Critical patent/CA2056072A1/en
Application granted granted Critical
Publication of CA2056072C publication Critical patent/CA2056072C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H04J3/0632—Synchronisation of packets and cells, e.g. transmission of voice via a packet network, circuit emulation service [CES]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L2007/045—Fill bit or bits, idle words
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5614—User Network Interface
    • H04L2012/5616—Terminal equipment, e.g. codecs, synch.
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

ABRÉGÉ DESCRIPTIF Dispositif pour la transmission d'informations synchrones par un réseau asynchrone, notamment un réseau ATM Dans un tel dispositif, les informations sont véhiculées par paquets de bits de données entre un organe émetteur et un organe récepteur, chacun de ces paquets étant formé d'une cellule d'information comprenant d'une part un en-tête porteur d'une adresse et d'autre part un champ utile porteur de l'information à transmettre, l'organe émetteur et l'organe récepteur fonctionnant entre eux en mode synchrone sur la base d'horloges locales respectives plésiochrones. Selon l'invention, le dispositif comporte: -des moyens (15) pour détecter et compenser des éva nouissement longs de transmission du flux de cellules d'information reçu par l'organe récepteur, -des moyens (16) pour détecter et compenser la perte ou l'insertion de cellules dans le flux de cellules d'information reçu par l'organe récepteur, et -des moyens (17) pour réduire la gigue introduite par la transmission asynchrone des informations dans le réseau et pour compenser le plésiochronisme relatif des horloges locales de l'organe émetteur et de l'organe récepteur. (Figure 5)ABSTRACT DESCRIPTION Device for the transmission of synchronous information by an asynchronous network, in particular an ATM network In such a device, the information is conveyed by packets of data bits between a transmitting member and a receiving member, each of these packets being formed '' an information cell comprising on the one hand a header carrying an address and on the other hand a useful field carrying the information to be transmitted, the transmitting member and the receiving member operating between them in synchronous on the basis of respective local plesiochronous clocks. According to the invention, the device comprises: - means (15) for detecting and compensating for long fading of transmission of the flow of information cells received by the receiving member, - means (16) for detecting and compensating for the loss or insertion of cells in the flow of information cells received by the receiving organ, and means (17) for reducing the jitter introduced by the asynchronous transmission of information in the network and for compensating for the relative plesiochronism of the local clocks of the transmitting and receiving organ. (Figure 5)

CA002056072A 1990-11-23 1991-11-22 Device for transmitting synchronous data in an asynchronous network, particularly an atm network Expired - Fee Related CA2056072C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR909014625A FR2669798B1 (en) 1990-11-23 1990-11-23 DEVICE FOR TRANSMITTING SYNCHRONOUS INFORMATION OVER AN ASYNCHRONOUS NETWORK, ESPECIALLY AN ATM NETWORK.
FR9014625 1990-11-23

Publications (2)

Publication Number Publication Date
CA2056072A1 true CA2056072A1 (en) 1992-05-24
CA2056072C CA2056072C (en) 2002-02-12

Family

ID=9402507

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002056072A Expired - Fee Related CA2056072C (en) 1990-11-23 1991-11-22 Device for transmitting synchronous data in an asynchronous network, particularly an atm network

Country Status (5)

Country Link
US (1) US5274680A (en)
EP (1) EP0487428B1 (en)
CA (1) CA2056072C (en)
DE (1) DE69132924T2 (en)
FR (1) FR2669798B1 (en)

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Also Published As

Publication number Publication date
EP0487428A1 (en) 1992-05-27
CA2056072C (en) 2002-02-12
FR2669798A1 (en) 1992-05-29
DE69132924D1 (en) 2002-03-21
FR2669798B1 (en) 1994-09-16
EP0487428B1 (en) 2002-02-06
US5274680A (en) 1993-12-28
DE69132924T2 (en) 2002-09-12

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